Governor for internal-combustion motors



R. Hui-'FORD GOVERNOR FOR INTERNAL CoMBusTIoN MOTORSl Filed April 111924 TTORNEY A Patented May 19, 1925.

"PATENT OFFICE.

RAYMOND HUFFORD, or NEW YORK, N. Y., ASSIGNOR. To

K. I. PRODUCTS COMPANY,

INC., F NEW YORK, N. Y., A CORPORATION 0F NEW YORK.

GOVERNOR Fon INTERNAL-COMBUSTION MOTORS.

.Application led April 11, 1924. Serial'NO. 705,732. l

To all whom'z't may concern.'

Be it known that I, RAYMOND HUFFORD, a citizen of the United States, anda resident of New York city, in the county, city, and State of New York,have invented certain new and useful Improvements in Governors forInternal-Combustion Motors, of which the following is a specification.

My invention relates to improvements ingovernors for internal.combustion motors and has for its object to provide a governor for thispurpose which will be more efficient, accurate and certain in its actionthan those heretofore in use.

With this and other objects in view, which will be more particularly setforth in the specification, my invention consists of the novel detailsof construction and combinations hereinafter disclosed and particularlypointed out in the claims.

Referring to the accompanying drawing, Figure 1 is a sectional elevationon the line 1--1 of Figure 2. Figure 2 is a sectional view on the line2-2 of Figure 1. Figure 3 is a sectional view partly broken away on theline 3 3 of Figure 2. Figure 4 is ya sectional view on the line 4-4 ofFigure 1. Figure 5 is an enlarged sectional view `of a modification ofthe check valve which when in a closed position cuts ofl-` communicationwith the passage communicating between the interior of the governorshell and the cylinder in which is mounted the piston by which theclosing movement of the speed regulating valve is continued'toward or toclosed position.y Similar numerals designate similar parts on theseveral views.

My governor is provided with a shell or body 1, having a cylindricalbore orA passage 2, and is provided with an inwardly p'ojecting flange 3at the outlet end thereof.

ounted in the upper end of the shell is a spacing sleeve 4 having avcontracted throat 5. Mounted in the cylindrical bore immediately belowthe spacing sleeve 4 is a collar 6 having a spider 7. The spider7 isprovided with a centrally positioned cylindrical cup 8, a guide 9 and acylinder 10. A passage 11 communicates between the 'cup 8 andthecylinder 10. A bushing 12 is mounted as shown in the spider and in thebushing 12 is mounted a needle valve 13 by which the passage 11 may bemore or less closed. A passage 14 communicates between the cylinder 10and the interior of the which a spring 16 serves to normally hold theball 17 lin closed position on its` seat 18. The tension of this springmay be adjusted by mcansof the screw threaded plug 19. Ports 20 and 21communicate with the chamber 22 in. which the ball valve is mounted.Also formed in the spider 7 is a passage 23 communicating at its lowerend with the cylinder 10 atl the lower end thereof. The upper end ofthis passage 23 communicates with a passage 24 and with a passage 25 inthe threaded plug 26. The outer end ofpassage 25 opens into the chamber27 which has a cover 28 which is loosely fitted over the chamber so asto permit air to flow into said chamber. Mounted in the cylindrical cup8 is a Ycylindrical cup shaped valve 29 having ports 30 in the bottomwall thereof i and a cent-ral threaded recess 31 in which is secured thethreaded stem 32 on theguide stem 33, and the parts are locked inposition by the lock nut 34 and the cotter pin 35. Formed integral withthe guide stem/is a piston 36 adapted to reciprocate in the cylinder 10.The lower end of the cylinder 10l and the passage 23 are closed by aplug 3 7 and a washer38. Formed in opposite sides of the cylinder 10 areslots 39, and a hole 40 is tapped through the piston 36. A sleeve 41,carrying an impact head 42 is mounted' concentrically around thecylinder 10 and this sleeve is secured to the lpiston by means of a pinr43 which passes through oppositely opposed holes 44 located nearthe topof. the sleeve 41. Mounted concentrically around the sleeve 41 is asleeve 45 having an v outwardly extending -iange at 46 atl the lower endthereof. Formed in this sleeve 47 are oppositely opposed'. holes 48which are holes 48. The spider is threaded at 49 to formed in a planebelow the plane of the receive an adjusting nut 50 which may be adjustedby the shaft 51 carrying the spiral thread 52. Mounted concentricallyaround the cylinder is a spiral spring 53, one end of which bearsagainst the nut-50 and the other end against the flange 46 on the sleeve45. 54 are perforated ears by which the governor may be secured betweena carbureter 57 and the manifoldof an engine by bolts passing throughsaid ears. The 'spider 7 is held in position by a spacing sleeve 55which has a contracted throat 56. The outletl end of the carbureter 57is provided with the usual main throttle valve 58.

The operation of my governor is as follows:

Vhen the motor to which the governor is. attached is running slowly, thepassage of the mixture from the carbureter through my governor to themotor will be comparatively slow and the impact of the mixtureon thehead 42 will not be suicient to lift the head and the parts to which itis secured because of the resistance of gravity and of the spring 53.The weight of the head 42 and the parts to which it is secured,

and the resistance of the spring, as adjusted VY*or* approachin jmallys'ubjecte to a iesser vacuum than theA vacuum between 11e valve 29and the motor;

by the nut 50, and of gravity are such that when the 4fiow of themixture and its velocity .is increased by the increase in engine speedto approximately the .speed for which thegovernor has been adjusted thehead will be lifted, carrying with it the Ipiston 36 and the cup shapedv alveI 29 and move the valve 29 toward the restricted throat 5 therebyreducing the area of said port. As the valve 29 approaches the closedposition it not only reduces the flow of mixture to the motor but causesthe pressure above the valve to fall below atmospheric pressure which iscommunicated to the bottom of the cylinder below the piston by thepassages 23, 24 and 25. As the valve 22 is raised this difference inpressure is rapidly increased and as the motor speed is increased thedifference in pressure yvill cause the ,piston 36 to rise and lift thevalve 29 until the throat 5 is nearly closed and further acceleration ofthe motor prevented. The air leak past the piston 36 is such, and thecapacity of the passage 11 as regula-ted by the needle valve 13 is solimited that the piston 36 will not rise and move the valve 29 towardthe closed position until the motor speed approximates the maximum speedfor which the governor has been adjusted. The adjusting means are thenut 50, which regulates the resistance of the spring 53 and the needlevalve 13 which regulates the capacity of the passage 11.

To prevent stealing. or racin the motor under a partial load when the trott-le valve of thecarbureter is nearly closed, I have.

provided the passage 14 and the ball valve 15., which is mounted belowthe restricted throat 5 and. therefore is normally in the closedposition, and when the valve 29 is in` the c. sed position, is nor- 2. Agovernor higher than the vacuum in the upper end' of the cylinder 10causing the ball 17 to rise and open communication between the body ofthe governor and the upper part of the cylinder 10 through the passage14, and the passage 14 being of far greater ca acity than the passage 11as it is restricted y the needle valve 13, the leak past the pistonbecomes negligible and the piston is immediately elevated and the valve29 moved toward or to closed position, restricting further accelerationof the motor speed.` The vacuum or difference in-pressure which willnormally cause the piston 36 to be actuated can be readily regulatedbymeans of the needle valve 13. Thisl needle valve 13 should be soregulated as against the resistance of the spring 53 that, when theimpact ofthe entering mixture on the head 42 has substantially elevatedthe head and caused the valve 29 to move asubstantial -distance towardsthe closed position the vacloro Figure 5 is used, the weight of the ball17 and the resistance of the spring 16 asadj usted should be such thatthe negative pressure required to lift the ball 17 will be below themaximum negative pressure which can 'be created in the passage 2 whenthe motor is running free or under a small load at a speed for which thegovernor is adjusted and the throttle valve of the carbureter ismanipulated toward the closed position. It will be noted that the piston36 is in axial alignmentwith the valve 29'and therefore there will bevlittle or no tendency to throw the moving parts out of alignment andcause undue friction which would prevent the ac,- curate operation ofthe governor.-

Claims:

1. A governor for internal combustion motors comprising in combination abody,

a passage in said body through which the combustible mixture may pass toa motor, a valve adapted to reduce the effective area of such passage asit is moved toward its closed position, primary, secondary and tertiaryautomatic means adapted to cause a movement of such valve toward itsclosed position.

'for combustion tuated by motors comprising in combination a body, apassage in said body through which combustible mixture may pass to amotor, a reduce the effective area of such passage as it is moved towardthe closed position, and primary automatic means adapted tomove saidvalve toward its closed position, secondary automatic means actuated b'ythe negative pressure beyond said valve adapted to move said valvetoward its closed position, and means acthe negative pressure in saidpassage anterior to said valve, adapted to cause a movement of saidvalve toward its vclosed position.

3. A governor for internal combustion motors comprising in combination abody, a passage in said body through which combustible mixture maydischarge outlet, a .valve adapted to reduce the effective area of suchoutlet, a cylinder in axial alignment with such valve, a passagewayleading from such cylinder tothe outside atmosphere and .arestrictedpassageway leading from such cylinder to said passage in said bodybeyond said valve, a passageway leading from said cylinder to saidpassage in said body anterior to said valve, an outwardly opening checkvalve normally closing such passageway, and a piston mounted in Saidcylinder adapted to operate said valve.

4. A governor for internal combustion motors comprising in combination abody, a passage in said body through which combustible mixture may passtoa motor, a valve adapted to lreduce the effective area of said passagewhen it ismoved toward its closed position, a cylinder, a passagewaycommunicating betweensuch cylinder and the outside atmosphere, arestricted passageway communicating between such cylinder and such-passage in said body beyond such valve, means for regulating therestriction of such passageway,J a second passageway communicatinbetween such cylinder and suchpassage 1n such body anteriorto'saidvalve, a checkvalve adapted to normally close said second passageway anda piston mounted in said cylinder adapted to operate said valve.

5. A governor for internal combustion motors comprising in combination abody,

a passage in said body through which combustible mixture ma pass to amotor, a valve adapted to re uce the effective area of said passage whenitis moved toward its closed position, primary means actuated b impactof the mixture flowing through suoli passage adapted to initiate theclosing movepass to a motor, a

ment of said valve, secondary automatic means actuated by the reductionof pressure beyond said valve adapted to continue and complete theclosing movement ofsaidvalve,

and tertiary automatic means actuated by a predetermined reduction ofpressure in said passage in said body anterior to said valve adaptedI tosupplement the activity of said secondary means. i v

6. A governor for internal combustion motors comprising in combination abody, a passage in said body through which combustible mixture may passto a motor, a valve adapted to reduce the effective area of said passagewhen it is moved towards its closed position,.a cylinder, a passagewaycommunicating between such cylinder and the outside atmosphere, arestricted passageway communicating between such cylinder and suchpassage in said body beyond such valve, means for regulating therestriction of such passageway, a ,second passagewa communicatingbetween such cylinder an `such passage in suchbody anterior to saidvalve, aV check valve adapted to normally close said second passageway,means for varying the ne ative pressure required to open such checvalve, and a piston mounted in said cylinder adapted to operate saidvalve.

A governor for internal combustion motors ',comprising in combination a`body, a passage through said body through which combustible mixture maypass to a motor, a valve adapted to'reduce the effective area of suchpassage as it is moved toward the closed position, automatic meansactuated by negative pressure beyond said .valve adapted to move saidvalve toward its closed position, and secondary automatic means actuatedby negative pressure in such passage anterior 4to saidv valve adapted tomove said valve toward 'its closed position. l 8. A governor forinternal combustion motors comprising in combination a body, a passagethrough said body through which combustible mixture may pass to ,amotor, aivalve adapted to reduce the eective area 'of such 'passage asit is moved toward the closed position, automatic means actuated bynegative pressure beyond. said valve adapted to move said, valve towardits closed position, means for regulating the negative pressure requiredto actuate such automatic `means, and secondary automatic means actuatedby negative pressure in such passage anterior to said va to move saidvalve-toward its closed position.

I RAYMOND HUFFoRD.

ve adapted v

